恐龍卡第 0110 張，共 2 027 張

Anguanax

名字的意思： “lord of the Anguana, a water spirit from Italian myths”1

吃：肉蛇頸龍類侏羅紀中期到侏羅紀晚期嚴格來說不是恐龍

Anguanax was a plesiosaur, a marine reptile that lived in the warm Jurassic seas. It was a powerful swimmer and a meat-eater, using its long jaws and sharp teeth to catch fish and other soft-bodied prey.1

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

165 到 159 百萬年前3

侏羅紀中期到侏羅紀晚期

化石發現地

Kaberlaba quarry near Asiago, Vicenza Province, northern Italy3 1

長度

3 到 4 m (9.8 到 13 ft)1

最高速度

時速約 29 公里（18 英里）

游泳, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多大？

牠有多長？

跟 4 隻狗從鼻子接到尾巴一樣長跟 22 根香蕉頭尾相接一樣長能在 6.2 秒內游完一座大泳池（50 公尺）

Anguanax 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Anguanax 時速約 29 公里 (18 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Anguanax is the first articulated skeleton of a plesiosaur ever found in Italy.1

Its name comes from the Anguana, a water spirit in Italian folklore that was part fish and part reptile.1

Anguanax lived about 160 million years ago, during the Late Jurassic period.1

The skeleton was discovered in the 1980s but was not fully studied until 2014 by scientists Andrea Cau and Federico Fanti.1

Anguanax had a large skull compared to its body, which helped scientists identify it as a pliosaurid, a type of plesiosaur.1

Its eye sockets were moderately expanded and faced sideways, suggesting it hunted in the upper layers of the ocean.1

Anguanax 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Anguanax 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

給恐龍專家

學名: Anguanax
命名者: Cau and Fanti 20163
類群: 蛇頸龍類
科 / 演化支: Pliosauridae3
分類: Plesiosauria > Pliosauridae > Sauropterygia3
岩石的年代: 165 到 159 百萬年 (Callovian / Oxfordian)3
岩層: Rosso Ammonitico Veronese3
國家: 義大利3
化石紀錄: The Paleobiology Database 收錄 1 筆3
發現: The skeleton was collected in the 1980s from a quarry in northern Italy, but it was first described and named Anguanax zignoi by Andrea Cau and Federico Fanti in 2015. The species name honors Achille de Zigno, who found the first plesiosaur remains in the same area in the 1800s.1
仍有爭議: Scientists are still debating exactly how Anguanax is related to other plesiosaurs, with some analyses placing it as a basal pliosaurid and others as a sister group to different lineages.2